Burnishing-machine



T. LUND.

BURNISHING MACHINE.

APPLICATION men NOV-28. 1916;

1,303,931, Patented May 20, 1919.

2 SHEETS-SHEET l.

T.=LUND.

BUBNISHJNG MACHINE. APPLICATION FILED NOV- 28. 1915.

1,303,931 a Patented May 20, 1919.

2 SHEETS-SHEET 2.

7 7/141, IIIIIIIA WWI periphery.

NITED sT s" PATENT oEEIoE.

TIIoMAs LUND, 013 BEVERLY, MASSACHUSETTS, ASSIGNOR, BY MESNE ASSIGNMENTS, To UNITED-XPEDITE FINISHING COMPANY, or BERWICK, MAINE, A CORPORATION OF MAINE.

IBURNISHING-MACHINE.

Patented May 20,1919.

Application filed November 28, 1916. Serial No. 133,867.

To all whom it may concern: 7 Be it known that I, THoMAs LUND, a citizen of the United States, residing at Beverly, in the county of Essex and State of Massachusetts, have invented certaln Improvements in Burnishing-Maohines, of which the following description, in connection with the accompanying drawings, is a specification, like reference characters on the drawings indicating like parts in the several figures This invention relates to a burnishing machine which is provided with a rotary tool adapted to be heated and by means of whlch wax may be applied to the surface to be burnished.

In burnishing the heels of boots and shoes, it'is common to employ a rotary tool which is heated and whose periphery is supplied with wax or other finishing medium which will be transferred to the surface to be b urnished. Such tools are frequently heated by the external application of a gas flame but such an arrangement is disadvantageous on account of the danger of setting fire or of burning the operatives hands. Wax is usually applied to the periphery ofthe tool by means of a rotary disk one side of whlch dips in a well of wax and another portion of which runs in close proximity to the tool Inasmuch as the supply of wax is independentof the use of the machine, it will be seen that the wax may accumulate upon the tool in the case of considerable intervals between the applications of work to the tool. g

The objectof'the invention is to provide an improved burnishing machinewherein the difficulties noted will be avoided. The

invention contemplates the provision of a rotary tool which shall be heated by steam supplied to the interior of the tool While the same is rotating. I It also contemplates a tool in which wax is supplied directly to the pe-.

riphery of the tool through the interior thereof while the'same is rotating, the tool being preferably arranged so that the supply of wax is determined by the application of work to the tool. v A feature of the invention consists in an arrangement for preventing the formation of steam pockets which might cause condensation and imperfect operation of the steam heating device.

Another feature of the invention relates to-the arrangement of the means for supplying wax to the tool While it is being rotated and especially to the arrangement whereby the'wax supply pot,together with all parts of the communicating passage between the same and the wax chamber of the tool, are continuously and thoroughly heated.

As here shown, the rotary tool is preferably provided With a plurality of chambers, certain of which are adapted to be supplied with steam and others of which are adapted. to be supplied with melted wax while the tool is rotating, the latter chamber or chambers communicating with the work surface ofthe tool by means of openings which are preferably provided with valves controlled by the application of Work to the tool. The wax and steam chambers are preferably adjacent in order that the wax may be maintained in melted condition by the heat supplied from the steam chamber.

. The scope of this inventionis to be determined from the appended claims and it will be understood that it is not limited to the exact arrangement described in the specification and shown in the accompanying drawings in which Figure 1 is a side elevation of a burnishing machine constructed inaccordance with my Invention and including my novel burnishing tool;

Figs. 2 and 3 are longitudinal sections through the end bearings of the burnishing machine;

Fig. 4 is a section through the burnishing tooltaken upon the line l4 of Fig. 5; and

Fig. 5 1s a slde elevation, partly in section, of the burnishing tool.

A frame 10, of any suitable construction,

is herein shown as adapted to be secured to a work bench and is provided with a plurality of bearings 12, 14 and 16 which support a hollow shaft 18 upon which is mounted the burnishing tool 20 and a driving pulley 22. This shaft may be rotated from any suitable source, as for example, by means of a belt 24. The tool 20 is securely held in fixed relation to the shaft by means of a collar 21 (Fig. 4) pinned to the shaft and having a projection 23 entering a notch in a flange 25 .on the tool and clamped thereto by means of a screw threaded collar 27. A bracket 26 here shown as formed integral with the frame, is designed to support a rotatable work rest 28 and an adjustable a-aatat'eti "riiaiesafaiatrafter(a1.

the presentv invention and are of the type more, fully illustrated. in the patent tofPease No. 959,880 of MaySl, 1910. The tread rest is mounted upon a slide 32 which is adjustable longitudinally of the shaft by" that the burnishing tool is provided'with a plurality ofchambers, of which alternate ones 40 are adapted for the admission of steam to'heat the tool and are provided with openingsv 42 and 44 communicating with suitable openings in the hollow shaft to provid'e for the admissionand exhaust of steam to said chambers. It should be noted that these openings are arranged adjacent to the lateral face of the burnishi'ngtool in order that steam, admitted through the opening 42,.shall traverse practically the whole of the chamber 40before passing through the exhaust opening 44 thereby avoiding pockets wherein condensation can take place and the proper. heating of the tool prevented. Steam may be supplied, to the right end of the hollow shaft 18 through a pipe 46 connected with an opening 48 (Fig. 3) in the bearing 16. Suitable packing 50, adapted to be compressed by an annular threaded ring v52, is provided within the bearing to make thejoint between the same and the hollow shaft steamtight without interfer ing with the free rotation of the shaft. An oilv cup 54 allows for the lubrication of the shaft. The exhaust steam will pass by way of the left end of the hollow shaft. 18, through openings 563tl16l8l11 (Fig. 2) which communicate with an annular duct 58in the bearing 12 and thence with an exhaust pipe 60. The open end of the hollow shaft 18 is closed .by means of ascrew-v plug 62 andoil cups 6 4 are provided for the lubricationjof' the bearing.

. A partition 66.is arranged within the hollow shaft 18, in the-planeof the burnishi-ng tool, to separate the-inlet and exhaust portions ofxsaid shaft and at the same time provide for thesupport ofa pipe-68 mount-.

.ed' torotate therewith within the hollow shaft and communicating by means Of' OPGIl". ings. 7 O. with. one or-more wax chambers 72. These chambers-are provided with openings 74. communicating with the work surface of the tooland the flow of wax therethrough is controlled' by means of suitable valves 76 here shown as comprising spring pressed balls. 78 which project slightly beyond the work surface of the tool and are adapted, when depressed, to allow wax. to be supplied to the work surface. As thetool. is rotated in contact with the surface of the work these balls-.78 will roll within the valve openings thus bringing a wax coated portion to the surface of the tool and at the same time avoiding the production of tool marks such as would result frointhe use of a reciprocating valve. The right end of the pipe 68 is supported in the bearing 16 concentrically with the hollow shaft 18, .p.artly by aperforated; spacer 69,- and communicates with a wax pot 80 (Fig. 3) which is shown as provided with a hinged cover :82 whereby wax may be supplied thereto. This wax pot is preferably provided with an annular jacket 84 whereby the live steam supplied through the pipe 46 will circulate around said jacket and melt thewax in thepot.

The work surface of the burnishing-tool may be of any suitable form and it is herem shown as provided with depressions 86 and with suitable grooves or markings 88 whereby the wax will be evenly distributed over the surface of the tool,-and hence over the workto be burnisl1ed,and theproduction of tool marks upon the work avoided. It will be noted that the disposition ofv the various depressions and markings on the face of the tool causes arubbingaction first outwardly toward the margins of the tool and then inwardly away. from these margins and lengthwise of the edge. On account of the depressions .86 in the periphery of the work-rubbing surface, the extent of the burnishing siu'face between the opposite-edges of the tool alternately increases and diminishes as the tool advances over the. work. By means of the staggered arrangement of the wax outlets along the periphery of the surface of. the tool, the supply of waxis more evenly distributed along'the heel to be burnishedi V 5' 'Eheoperationof-the machine will be similar to that of finishing machines well known in the -.art,;-and, if-nsed in burnishing the heel tion illustratediis especially adapted, the;

tread ofthe X11861 will be rested against the.

tread rest 30 and the heel face-maintained in contact with the work surface of the tool. while being rested against. and rotated upon the work rest 28. A. rapid rotation of the heated tool in contact with the face of the heel or-other work will cause the same to be highly burnished. In :additiomit .is-usually foundadesirable to apply wax to the surface of the tool and hence to the surface-of the workand it isseen that by means of this invention,. waxyis supplied :to the. work surface of' :a toolyw hilethe same is rotating. Sincethemfiow of wax is controlled by the application of work to the tool, wax will be supplied only while the machine is being used and hence an accumulation of waxwill be avoided during intervals-between theapplication of the work. By keeping'the wax pot andth pipe communicating between said pot and said wax chambers of ,the tool heated, as. well as by heating the tool itself, hardening of, the wax during its passage through the machineis avoided. This action is especially assisted by the adjacent location of the steam and wax chambers. It

' will be understood, however, that my invention is applicable to a tool which is not supplied with wax and that it is not essential that it, be utilizedfor .burnishing the heel of a shoe since those skilled in the art will readily perceive how the same may be adapted for other purposes.

Having'thus described my invention, what I claim as new and desire to secure by Letters Patent of the United States is :,v

1. In a machine of the typedescribed, a shaft, a rotary finishing tool mounted there. on provided with a finishing surface surrounding a chamber, and meansfor introducing steam into said chamber through the shaft of said tool near one side of the finishing surface, said chamber being provided with an opening near the opposite side of the finishing surface for exhaust of .the steam.

2. I11 a machine of the type described, a plurality of. bearings, a shaft in said bearings, a rotary finishing tool mounted on said shaft and providedtwith a chamber, one of said bearings having means for introducing steamto said chamber, and-another of said bearings having means for exhausting steam from said chamber.

3. In a machine of-the type. described, a shaft, a rotary finishing tool mounted thereon, plying wax to the work surface, andmeans for supplying steam through said shaft to heat said tool and melt thewax.

4. In- 'a machine ofthe type des'cribed, a rotary burnishing tool,'means for heating said tool, a source of wax supply external to the tool, and means for supplying wax to the work surface from the source-through the interior of the tool while the same "is rotating.

5. In a machine of the class described, a movable finishing tool provided with a passage communicatlng with its work surface, a source of finishing medium fixed relatively to the tool, and means for supplying the finishing medium from the source to the passage during the movement of the tool.

6. In a machine of the type described, a rotary finishing tool provided with a chamber communicating with the work surface of the tool, and means for supplying wax to said chamber while the tool is rotating.

7 In a machine of the type described, a shaft, a rotary finishing tool mounted thereon and provided with a chamber communimeans rotatingwith said tool for sup-- eating with the work surface of the tool, and means for supplying wax through said shaft to said chamber.

8. In a machine of the type described, a rotary'finishing tool provided with a chamber communicating with the work surface of thetool and adapted to be filled with wax, and means governed by the application of work to the tool for controlling the flow of wax.

9. In a machine of the type described, a shaft, a rotary burnishing tool mounted thereon, a wax reservoir, and a connecting passage leading from the work surface of said tool through said shaft to said wax reservoir whereby .wax may be supplied to the work surface while the tool is rotating.

10. In a-machine of the type described, a shaft, a rotary finishing tool mounted thereonand provided with a chamber communieating with the work surface of the tool, and a fixedwax receptacle, said shaft beingprovided with apassage connecting said receptacle and the chamber.

11. In a machine of the type described, a shaft, a rotary finishing tool mounted thereon and provided with a chamber communicating with the work surface of the tool, means for supplying wax through said shaft to said chamber,- and means for internally heating said tool.

12. In a. machine of the type described, a shaft, a rotary finishing tool mounted thereon provided with a chamber communicating with the work surface of said tool and adapted to be filled with wax to supply the work surface, and means for supplying steam through said shaft to heat said tool and melt the wax.

13. In a machine of the type described, a

rotary finishing tool provided with a plurality of chambers, one of said chambers communicating withthe work surface of the tool, means for supplying wax to the-latter chamber while the tool is rotating, and

means for supplying steam to another cham ber while the tool is rotating t heat th 1 and melt the wax.

- plying steam through a bearing to another chamber for heating said tool.

15. In a machine of the type described, a shaft, a plurality of bearings for said shaft, a rotary finishing tool mounted on said shaft provided with a plurality of chambers, one of said chambers communicating with the .14.. In a machine of the type described, a V hollow shaft, a plurality of bearings for said.

&

Work surface of the tool, means controlled by the application of work for controlling the communication between said chamber shaft mounted in said bearings, a tool mounted on said shaft and provided with chambers'one of which communicates with the work surface of said tool, a wax pot mounted on the frame, connections between said wax pot and the chamber extending through the shaft, a steam jacket around said wax pot communicating with a passage in said shaft and with a chamber 1n said tool, and means for supplying steam to said jaoketgand the passage in the shaft to melt the wax. V

17. In a machine of the type described a hollow shaft, a rotary tool'mounted thereon provided with a plurality of chambers, one of said chambers communicating with the work surface of the tool, a pipe within the hollow shaft communicating with the latter chamber to permit the supplying of wax thereto, and means for supplying steam to another chamber of said tool through the space in said hollow shaft surrounding said wax supply pipe.

18. A movable finishing tool provided with a wax chamber which communicateswith the work surface of the tool, and a valve controlling the oommunlcating passage having a controlling member projecting beyond the surface of the tool and arranged to roll when the tool moves along the surface of the Work whereby the production of tool marks by the valve controlling membeer is avoided.

Copies of this patent may be obtained ior'five .cents each, by'laddressi-ng the "\G-ommissioner \oflat'ents,

chamber communicating-i with the work 'sur- 7 face of the tool, and means for controlling the flow of Wax through said communicating passage comprising a spring pressed ball valve arranged so t hatthe said-ball project'sslightly beyond theworksurface of the tool whereby the same will be depressed upon the applicatiomof work. H

21. Ina ma'ohineof the type described, a rotary finishing tool provided'with a plural ity of chambers, certain of said chambers being adapted to "be filled with wax and communicating with the work surface of the tool, others of said chambers being adapted to be heated by the introduction ofstea'm, one-of said steam chambers being adjacent to one of said wax chambers rotary finishing tool provided with a plurality of chambers-communicating with the work surface of thetooland adapted to be filled with wax, and means interposed between said wax chambers for internally heating said'tool'.

23. A movable finishing tool provided with a wax' supply passage connected with t-hework surface-of thetool, and a member contacting with'the work and controlling the flow of wax from-the passage, said member being movably mounted to prevent it from marking thework. j

In'testimony, whereof I havesigned my name to this specification p I THOMAS LUND;

washingtomm; G?

75 22. Ina machine of thetype described, a 

